American Psycho - Lying to one's self

I would like to discuss the character of Bateman because his personality (I found) is hard to understand.

In the beginning of the book, before we really know anything about him, we can understand that he is an organized, stately individual who has a good head on his shoulders.  He knows how to make friends (even though it won't be for good reasons) and knows exacly what he needs to do in order to become more and more successful in his life, be it work, women, or general knowhow.  He does know a shocking amount about music and art, but surprisingly it is not really shown that he knows a lot about his work.  He often meets up with his co-workers to discuss somewhat to completely unrelated topics usually around women or power, and whenever he is at work he often loafs around and tells his aid excuses as to why he can see no visitors.  I think of this personality as his "working self".

However at night when he has left his workplace he transforms into a completely different person.  here we see someone cold blooded, who kills as though he has "a need" (upon killing the hobo and his dog) to kill in order to maintain the standards of how people can be viewed.  At work he is a king, a respectable figure.  At home he is a terrorist and a criminal.  This personality maintains his organization in some degrees, like planning out how to get his co-worker drunk so that he wont understand that Bateman wants to smash an axe in his head.  Bateman also has everything cleaned afterwards.  Removing bits of flesh from his suits, taking bloody sheets to the laundromat, covering up objects he doesn't want limbs and blood on.  Although he does become quite reckless, like when he chases the prostitute (I forgot her name) naked and kills her with a chainsaw outside of his room, which I found to be unique because he performs most of his murders in his home.  I see this form of him as his "hyde self".

The inner self I saw in Bateman was hard to directly locate in the novel because we see so much of his working self and his hyde self in his daily life.  Only when he understands what he is doing do we see his "Inner self" where he shows passion, concern and loyalty.  He warns his aid that he might hurt her when she stops by his condo, and spills all the beans to his lawyer in an act of protecting society from himself.  In many ways this personality of Bateman was what humans today posses, where we care about our friends and co-workers, and if we do something wrong we confess it.  I believe that the aspects that made him human were hidden behind his professionalism at work and his violent joy at home.  Noting how he is single and has nobody he can constantly go home to and trust.